Explanation:
Magnesium has atomic number 12. It will be distributed in K, L, M shell in the following way:
K shell can accommodate a maximum of 2 electrons.
L shell can accommodate a maximum of 8 electrons and
M shell will accommodate 2 electrons
So the configuration becomes 2, 8,3
Yes, it does, just like any other sugar or substance
Significant figures communicates the level of precision in measurements.
the average speed is 23.4 km per hour cause it is total distance over total time equal to average speed
